They were horizontal drilling in the late 1980's. It started in the 1920's..Historical Gas Price Charts - GasBuddy.comThe average price of gas in 2009 was somewhere between 2 and 3 dollars not 4.
http://www.randomuseless.info/gasprice/gasprice.txt
The high price of crude oil encouraged the development of new recovery technology, which increase the supply. The slowing down of the economies in China and India also increased the supply. Green energy sources also increased the supply.
The business cycle simply doesn't match the political cycle.
When Obama took office it was nearly $2.59 per gallon after as you can see below it was in Jan 2008 about $1.59...
Then over the next 6 years kept climbing till 4/26/2011 it was over $4.00!
Continued at the $3.35 and up for nearly 3 years then started to fall WHEN fracking really started to make a dent in the crude prices.
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You have a way of jumbling facts into an incoherent and fictitious conclusion.
Before the crash of 2008 gas prices were at historic highs. They have not climbed that high since either. Fracking has been used for decades. Increased US well activity was due mostly to high prices and new exploration will decrease as the price goes down.
fracking has been around, but horizontal drilling hasn't. In combination with fracking, it turned a lot of deposits from non-recoverable to recoverable. There have also been a lot of improvements in fracking technology.